Comments

Ignoring some installation differences and using strace:
the "sage -notebook" path is ".../repl/rich_output/"
whereas "sage -n jupyter" , like above and on my installation, is ".../repl/display/"
although I haven't run strace in this case and just looked at the debug output.
If it would help, I can make some straces available in dropbox; they are tediously long though.
Or some way to control the /repl/xxx routing/option ??